\begin{tabular}{lrrr}
\hline
 Province       &   $\mu_{\mathrm{\fit}}$ &   $\mu_{\mathrm{approx}}$ &   rel. err. \\
\hline
 Hubei          &                    2.32 &                      2.39 &        0.03 \\
 All exc. Hubei &                    1.92 &                      1.71 &        0.12 \\
 Guangdong      &                    2.04 &                      1.89 &        0.08 \\
 Henan          &                    2.12 &                      1.88 &        0.13 \\
 Zhejiang       &                    2.16 &                      1.72 &        0.25 \\
 Hunan          &                    2.09 &                      1.87 &        0.12 \\
 Anhui          &                    2.05 &                      1.73 &        0.19 \\
 Jiangxi        &                    2.75 &                      2.04 &        0.35 \\
 Jiangsu        &                    2.20 &                      1.67 &        0.32 \\
 Chongqing      &                    1.45 &                      1.36 &        0.07 \\
\hline
\end{tabular}